Can you leave the airport?
Your hours, planned
Survive & recharge
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Connections at SFO: the honest numbers
The indicative minimum international-to-international connection at San Francisco is 90 minutes on a single booking with bags checked through. On separate tickets, add roughly 90 minutes: you'll collect bags, recheck them, and re-clear security — and no airline is obliged to help if the first leg runs late.
Transfer specifics
- Same US rule: no airside transit — everyone clears immigration and customs, then re-clears security.
- Terminals connect airside for many (not all) gate pairs post-security, and the AirTrain loops landside — SFO transfers are gentler than JFK/LAX but still budget 90 min+.
Leaving SFO during a layover
Same rule as every US airport: NO airside transit — everyone clears immigration and customs even when connecting, so an ESTA or visa is required regardless. The upside: BART runs from inside the airport to downtown in ~30 minutes, making SFO one of the easiest US city-dash airports. The city is about 35 minutes away one-way; as a rule of thumb you want 6+ hours before exiting is worth the queues, and you should be back through security 90 minutes before boarding.
Worth your hours in San Francisco
- 6h+: BART from the International Terminal to Embarcadero (~30 min) — Ferry Building food, waterfront walk, back
- 8h+: add a Mission burrito or a cable-car photo stop
- Foggy-day fallback: the SFO Museum exhibitions airside are genuinely worth an hour
Staying airside instead
- Probably the best US airport for killing time: real museums (SFO Museum rotates genuine exhibitions), an aviation library, and a yoga room
- Strong local food — Napa wine bars and proper sourdough beat chain fare
- Free water refill stations everywhere and famously clean terminals
Sleeping, showers and lounges at SFO
Sleep: Freshen-up day rooms and nap pods vary by terminal; the Grand Hyatt connected by AirTrain rents day rates. Airport hotels & sleep pods
Showers: In some lounges and the Freshen-Up locations.
Lounges: Good Priority Pass coverage by US standards, concentrated in International Terminal G/A. Book an airport lounge for your layover
Dietary needs: US law names nine allergens but the listed one is wheat, not gluten — barley and rye carry no warning. Restaurants aren't covered the way EU ones are. Bay Area food culture means vegan and gluten-free are better understood than the law requires.
Overnight reality: Open 24h and safer than most US hubs, but seating is armrest-heavy; the connected Grand Hyatt is the comfortable answer.
SFO layover FAQ
Do I need an ESTA to connect through San Francisco?
Yes — the US has no airside transit at any airport. Everyone clears immigration and customs even when only connecting, then re-clears security.
Can I get into San Francisco city on a layover?
Easily by US standards — BART runs from inside the International Terminal to downtown in ~30 minutes. With 6+ hours you get the Ferry Building and waterfront comfortably.
Is 90 minutes enough to connect at SFO?
On one booking it's the working floor once immigration and re-screening are counted — SFO processes faster than JFK/LAX on average, but 2 hours is still the calm zone.
What's there to do inside SFO on a layover?
More than any US airport: rotating SFO Museum exhibitions, an aviation museum and library, a yoga room, and genuinely good Bay Area food airside.
Some links above are affiliate links — they cost you nothing and fund keeping this data verified. We only link products we'd use on the layover in question.
Minimum connection times are indicative and vary by airline, terminal pair and season; visa notes are simplified general guidance, not immigration advice. Facts on this page were last verified on 2026-07-02. If anything has changed, tell us and we'll fix it fast.